Merge tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here is the big char/misc driver patchset for 4.11-rc1.

  Lots of different driver subsystems updated here: rework for the
  hyperv subsystem to handle new platforms better, mei and w1 and extcon
  driver updates, as well as a number of other "minor" driver updates.

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (169 commits)
  goldfish: Sanitize the broken interrupt handler
  x86/platform/goldfish: Prevent unconditional loading
  vmbus: replace modulus operation with subtraction
  vmbus: constify parameters where possible
  vmbus: expose hv_begin/end_read
  vmbus: remove conditional locking of vmbus_write
  vmbus: add direct isr callback mode
  vmbus: change to per channel tasklet
  vmbus: put related per-cpu variable together
  vmbus: callback is in softirq not workqueue
  binder: Add support for file-descriptor arrays
  binder: Add support for scatter-gather
  binder: Add extra size to allocator
  binder: Refactor binder_transact()
  binder: Support multiple /dev instances
  binder: Deal with contexts in debugfs
  binder: Support multiple context managers
  binder: Split flat_binder_object
  auxdisplay: ht16k33: remove private workqueue
  auxdisplay: ht16k33: rework input device initialization
  ...

1 files changed, 13 insertions, 8 deletions

diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 634ba70782de..ca904e8b3235 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -62,7 +62,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
 		if (palmas_usb->linkstat != PALMAS_USB_STATE_VBUS) {
 			palmas_usb->linkstat = PALMAS_USB_STATE_VBUS;
 			extcon_set_state_sync(edev, EXTCON_USB, true);
-			dev_info(palmas_usb->dev, "USB cable is attached\n");
+			dev_dbg(palmas_usb->dev, "USB cable is attached\n");
 		} else {
 			dev_dbg(palmas_usb->dev,
 				"Spurious connect event detected\n");
@@ -71,7 +71,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
 		if (palmas_usb->linkstat == PALMAS_USB_STATE_VBUS) {
 			palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
 			extcon_set_state_sync(edev, EXTCON_USB, false);
-			dev_info(palmas_usb->dev, "USB cable is detached\n");
+			dev_dbg(palmas_usb->dev, "USB cable is detached\n");
 		} else {
 			dev_dbg(palmas_usb->dev,
 				"Spurious disconnect event detected\n");
@@ -99,7 +99,7 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
 			PALMAS_USB_ID_INT_EN_HI_CLR_ID_GND);
 		palmas_usb->linkstat = PALMAS_USB_STATE_ID;
 		extcon_set_state_sync(edev, EXTCON_USB_HOST, true);
-		dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
+		dev_dbg(palmas_usb->dev, "USB-HOST cable is attached\n");
 	} else if ((set & PALMAS_USB_ID_INT_SRC_ID_FLOAT) &&
 				(id_src & PALMAS_USB_ID_INT_SRC_ID_FLOAT)) {
 		palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
@@ -107,17 +107,17 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
 			PALMAS_USB_ID_INT_EN_HI_CLR_ID_FLOAT);
 		palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
 		extcon_set_state_sync(edev, EXTCON_USB_HOST, false);
-		dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
+		dev_dbg(palmas_usb->dev, "USB-HOST cable is detached\n");
 	} else if ((palmas_usb->linkstat == PALMAS_USB_STATE_ID) &&
 				(!(set & PALMAS_USB_ID_INT_SRC_ID_GND))) {
 		palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
 		extcon_set_state_sync(edev, EXTCON_USB_HOST, false);
-		dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
+		dev_dbg(palmas_usb->dev, "USB-HOST cable is detached\n");
 	} else if ((palmas_usb->linkstat == PALMAS_USB_STATE_DISCONNECT) &&
 				(id_src & PALMAS_USB_ID_INT_SRC_ID_GND)) {
 		palmas_usb->linkstat = PALMAS_USB_STATE_ID;
 		extcon_set_state_sync(edev, EXTCON_USB_HOST, true);
-		dev_info(palmas_usb->dev, " USB-HOST cable is attached\n");
+		dev_dbg(palmas_usb->dev, " USB-HOST cable is attached\n");
 	}
 
 	return IRQ_HANDLED;
@@ -138,10 +138,10 @@ static void palmas_gpio_id_detect(struct work_struct *work)
 
 	if (id) {
 		extcon_set_state_sync(edev, EXTCON_USB_HOST, false);
-		dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
+		dev_dbg(palmas_usb->dev, "USB-HOST cable is detached\n");
 	} else {
 		extcon_set_state_sync(edev, EXTCON_USB_HOST, true);
-		dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
+		dev_dbg(palmas_usb->dev, "USB-HOST cable is attached\n");
 	}
 }
 
@@ -190,6 +190,11 @@ static int palmas_usb_probe(struct platform_device *pdev)
 	struct palmas_usb *palmas_usb;
 	int status;
 
+	if (!palmas) {
+		dev_err(&pdev->dev, "failed to get valid parent\n");
+		return -EINVAL;
+	}
+
 	palmas_usb = devm_kzalloc(&pdev->dev, sizeof(*palmas_usb), GFP_KERNEL);
 	if (!palmas_usb)
 		return -ENOMEM;